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Installation and Maintenance
GPIB Logic Levels
314
Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Sixth Edition
GPIB Logic Levels
The instrument’s GPIB lines use standard TTL logic, as follows:
• True = Low = digital ground or 0 Vdc to 0.4 Vdc
• False = High = open or 2.5 Vdc to 5 Vdc
All GPIB lines have LOW assertion states. High states are held at 3.0 Vdc
by pull-ups within the instrument. When a line functions as an input, it
requires approximately 3.2 mA to pull it low through a closure to digital
ground. When a line functions as an output, it will sink up to 48 mA in the
low state and approximately 0.6 mA in the high state.
The GPIB line screens are not isolated from ground.
N O T E
Summary of Contents for 8163B
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Page 20: ...20 Agilent 8163A B 8164A B 8166A B Mainframes Sixth Edition ...
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Page 62: ...Getting Started A Sample Session 62 Agilent 8163A B 8164A B 8166A B Mainframes Sixth Edition ...
Page 368: ...Performance Tests Test Record 368 Agilent 8163A B 8164A B 8166A B Mainframes Sixth Edition ...
Page 378: ...Performance Tests Test Record 378 Agilent 8163A B 8164A B 8166A B Mainframes Sixth Edition ...
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